Why does a block of wood exert different pressures on a table depending on its orientation?

The weight of the block changes

The density of the wood changes

When a stone is gradually lowered into water, what causes the decrease in the elongation of the string or reading on the balance?

The stone gains weight in water

The buoyant force acting on the stone increases

The water level rises, affecting the reading

The density of the water decreases

What does Archimedes’ Principle state about the buoyant force on an immersed object?

It is equal to the weight of the object

It is equal to the volume of the object

It is equal to the weight of the fluid displaced by the object

It is directly proportional to the density of the object

Why does a plastic bottle float in water when it is closed and empty?

The plastic bottle is denser than water

The plastic bottle displaces more water than its weight

The plastic bottle has a high buoyant force

The plastic bottle is lighter than water

What is the primary reason for using wide foundations in buildings?

To reduce the weight of the building

To increase the pressure exerted on the ground

To distribute the weight of the building over a larger area

To make the building aesthetically pleasing

In which scenario would you expect the pressure exerted by a block of wood to be greatest?

When the block is on a side with the largest area

When the block is on a side with the smallest area

When the block is suspended in the air

When the block is in a container filled with water

What does Pascal’s Law state about the pressure in confined fluids?

Pressure is not transmitted through fluids

Pressure varies according to the density of the fluid

Pressure is transmitted undiminished in all directions

Pressure is reduced by the fluid’s temperature

Why does an iron nail sink in water while a cork floats, despite both having the same mass?

The cork has a higher density than the nail

The nail displaces more water than the cork

The nail has a greater volume of displaced water compared to the cork

The density of the nail is greater than that of the water

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MCQ : Gravitation (Floatation)

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